I was just reading about the Wilkes Land crater, which may be linked to the Permian–Triassic extinction event. It was described as being in "Eastern" Antarctica. Considering Antarctica sits on the south pole (it's entire coast is the "north shore") how is the "East" side determine?

If you and I stand back to back on the south pole and we walk away from each other we will both be walking North (heading 0 degrees). If we walk 10 steps and turn right we are now both walking East, heading 90 degrees. However if we don't curve to the right we will both soon be heading close to North again. There is really not an east or west or south side of Antarctica. It ALL North side isn't it? Do they simply say the part of Antarctica south of Africa and Asia is east, and the part south of South America is west? That seems rather arbitrary.

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